Summary of Water Quality Data Analysis from the Storm Water Management Ponds of Central Park Fredericksburg, VA Dr. Michael L. Bass Miña Recta, Diana Gutierrez Department of Earth & Environmental Sciences University of Mary Washington

Overview Purpose of Study Background ▫Central Park ▫Smith Run Methodology Results Further Research

Purpose of Study Impact of Development On Environment ▫Helps developers and regulatory agencies ▫Environmentally-friendly practices ▫Minimize effects of urbanization Recent EPA Regulations ▫Affects Chesapeake Bay area ▫Total Maximum Daily Load (TMDL)  Nitrogen, Phosphorus, Total Suspended Solids, Fecal Coliform ▫Rappahannock River and similar rivers

Background Map of Central Park Ponds

Methodology 1.Water Chemistry a)On-site field sampling b)In-lab using EPA-approved LaMotte Test kits c)Trace Metal Analysis using ICP

Methodology Photo Taken By Dr. Michael Bass, 2011

Methodology Photo Taken By Dr. Michael Bass, 2011

Methodology: On-Site Water Chemistry YSI 85 and YSI ProPlus Meters ▫Dissolved Oxygen (mg/L) ▫Temperature (°C) ▫Conductivity (μS) ▫pH Water Samples for analysis ▫Sampling bottles ▫Sterile Whirlpak Bags

Methodology: In-Lab Water Chemistry Fecal Coliform (EPA Method 1603) Total Suspended Solids Trace Metal Analysis using ICP EPA-Approved LaMotte Test Kits ▫Nitrate ▫Phosphate ▫Ammonia ▫Hardness ▫Alkalinity Fecal Coliform Testing Photo Taken By Miña Recta, 2011

Results: Water Chemistry

Smith Run TestResult Nitrate (ppm)0.15 Phosphate (ppm)0.19 Ammonia (ppm)0.17 Alkalinity (ppm)23 Hardness18 Fecal Coliform (CFU)253.5 TSS (mg/L)4.5

Further Research Continue monitoring Stormwater Management Ponds parameters Smith Run studies